Solution – IIS SMTP Service 5.5.2 rejected: need fully qualified hostname

We had a small problem today with a new site we were going live with. It was refusing to send emails in 90% of cases. Problems like these are always difficult to identify, but your first step is always to enable logging. #Software: Microsoft Internet Information Services 7.0 #Version: 1.0 #Date: 2010-01-09 18:49:30 #Fields: c-ip […]